Sources of Forces

Vicki Cobb has a genuine knack for turning invisible physics concepts into something kids can hold, build, and test in an afternoon, and this book lives up to her track record. The progression from simple to more complex experiments is smart pedagogically, and Booklist's positive notice confirms it belongs on school and home library shelves. The absent index and table of contents are a real inconvenience for reference use — a small but genuine flaw in an otherwise strong science activity book.